wrongtest commented on PR #11828:
URL: https://github.com/apache/tvm/pull/11828#issuecomment-1163651679

   > Hey thanks for the contribution! I don't think I fully comprehend this 
change (and the unittest) so would love to hear more about your insights :-) 
With this change, whether or not to add a `tir::Var` into `dom_map` is based on 
its dtype. Why is it the case?
   
   Emmmmm,my understand is that since the pass is only interested in buffer 
indices,record index typed vars could be safe. While arith utilities are 
written to handle integers,binding things like SinglePoint(int32x8) would just 
fail on sanity checks of dom analysis (eg, EvalNDSet).
   
   


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